<template>
  <div class="my-header" :style="{ color, backgroundColor:bgc }">{{ title }}</div>
</template>

<script>
export default {
props: {
  bgc:String,// 外部插入此变量的值, 必须是字符串类型, 否则报错
  color:{
    type:String,
    default:'#fff' //如果不传值 就默认颜色
  },
  title:{
    type:String,
    required:true  //必须传入
  }
}
}
</script>

<style lang="less" scoped>
  .my-header {
    height: 45px;
    line-height: 45px;
    text-align: center;
    background-color: #1d7bff;
    color: #fff;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 2;
  }
</style>